Home / 32,780.30-45,254.57-20,036.43

Finding the Fourth Proportional to 32,780.30, 45,254.57 and 20,036.43

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Solution

The fourth proportional to 32,780.30, 45,254.57 and 20,036.43 is: 27,661.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,780.30 : 45,254.57 = 20,036.43 : x
  2. Step 2: Convert to fraction form
    32,780.30/45,254.57 = 20,036.43/x
  3. Step 3: Cross multiply
    32,780.30x = 45,254.57 × 20,036.43
  4. Step 4: Simplify right side
    32,780.30x = 906,739,923.80
  5. Step 5: Solve for x
    x = 906,739,923.80/32,780.30
  6. Step 6: Final answer
    x = 27,661.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.